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by MARK.WALSH
Wed Jan 16, 2019 10:33 pm
Forum: Four stroke
Topic: solex - poor mpg
Replies: 17
Views: 338

Re: solex - poor mpg

Chris thanks for the advice. I think the dimple you mention refers to the section on the top of the float which has a sort of dimple but mine is a greater depression within that caused by wear. I will certainly give the idea of changing washers a go as in the past I have noticed that the bike does i...
by MARK.WALSH
Mon Jan 14, 2019 8:22 am
Forum: Four stroke
Topic: solex - poor mpg
Replies: 17
Views: 338

Re: solex - poor mpg

actually - thinking about it I believe I have another better condition float kicking around in the garage so I will make a substitution and see if there is a difference. The bistarter needs full choke on cold but soon goes back in - less then a minute. Still I will check it is not sticking and fully...
by MARK.WALSH
Sun Jan 13, 2019 11:17 pm
Forum: Four stroke
Topic: solex - poor mpg
Replies: 17
Views: 338

Re: solex - poor mpg

thanks for the replies. I will have to check engine braking next time im out on it but I don't think it is overly noticeable. One thing I must pay attention to is the float height though, as the contact point on the float to the shut off valve is a bit concave from wear. I had thought of applying a ...
by MARK.WALSH
Sun Jan 13, 2019 1:02 pm
Forum: Four stroke
Topic: solex - poor mpg
Replies: 17
Views: 338

Re: solex - poor mpg

Thanks Bob
I was hoping for 40+ mpg at least.
Not sure how these carbs respond to ultrasound cleaning and the like - wondered if that might help
Mark
by MARK.WALSH
Sat Jan 12, 2019 7:54 pm
Forum: Four stroke
Topic: solex - poor mpg
Replies: 17
Views: 338

solex - poor mpg

I took the square 4 for a blast on new years day covering over 70 miles at speeds between 50 and 70mph On the way home I had to hit reserve despite having a good few gallons above the reserve line prior to the journey. I estimate I was getting around 35MPG or so. No leaks - not an overly rich mixtur...
by MARK.WALSH
Fri Jan 04, 2019 5:34 pm
Forum: Main Chat Forum
Topic: Ariel moving day.
Replies: 16
Views: 621

Re: Ariel moving day.

both beautifully restored bikes and a credit to you
Mark
by MARK.WALSH
Tue Jan 01, 2019 4:57 pm
Forum: Four stroke
Topic: SQ4 Brake Light Switch
Replies: 6
Views: 247

Re: SQ4 Brake Light Switch

Simes I originally bent the brake rod to fit long before fitting the lower guard . Fortunately it did not need bending again. Attached is the best I can do with the bike in the garage hopefully the brake switch can be seen, and although everything is close , there is no fouling or other contact - De...
by MARK.WALSH
Tue Jan 01, 2019 3:41 pm
Forum: Four stroke
Topic: SQ4 Brake Light Switch
Replies: 6
Views: 247

Re: SQ4 Brake Light Switch

Simes Only a few months ago I bought one of these for my 51 square 4 and it fits fine I have the brake rod as for that year and it is a tight fit. I've only just put the bike back in the garage after a 75 mile blast down the motorway but will try and get a couple of pics for you if you are having tr...
by MARK.WALSH
Fri Dec 28, 2018 5:15 pm
Forum: Four stroke
Topic: Square Four Push Rods
Replies: 31
Views: 522

Re: Square Four Push Rods

that's not good Are you sure the engine is timed correctly and the cam is not hitting the pistons? Also are you sure the bottom end of each pushrod is located in the relevant follower - it is possible for two push rods to be operated by one follower if not housed properly (easily done) - check by se...
by MARK.WALSH
Sun Dec 09, 2018 4:01 pm
Forum: Four stroke
Topic: 4G Conrod Advice
Replies: 23
Views: 1030

Re: 4G Conrod Advice

Hi
I agree with Chris - when your bombing along you don't want to worry about a rod failure. These engines sound so busy when your moving along at speed and new rods will give you the confidence to use and appreciate the finer points of the motor
Mark

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